- Teres minor muscle
Name = PAGENAME
Latin = musculus teres minor
GraySubject = 123
GrayPage = 441
Caption = Suprascapular and axillary nerves of right side, seen from behind. (Teres minor is visible at center.)
Caption2 = Muscles on the dorsum of the
scapula, and the Triceps brachii muscle: #3 is Latissimus dorsi muscle
Teres major muscle
Teres minor muscle
#13 is long head of
Triceps brachii muscle
lateral borderof the scapula
Insertion = inferior facet of
greater tubercleof the humerus
lateral circumflex humeral arteryand the circumflex scapular artery
laterally rotatesand adductsthe arm
DorlandsPre = m_22
DorlandsSuf = 12551124
The Teres minor is a narrow, elongated muscle of the
Origin and insertion
It arises from the dorsal surface of the axillary border of the scapula for the upper two-thirds of its extent, and from two
aponeuroticlaminæ, one of which separates it from the Infraspinatus, the other from the Teres major.
Its fibers run obliquely upward and lateralward; the upper ones end in a tendon which is inserted into the lowest of the three impressions on the
greater tubercleof the humerus; the lowest fibers are inserted directly into the humerus immediately below this impression.
The tendon of this muscle passes across, and is united with, the posterior part of the capsule of the
The Infraspinatus and Teres minor rotate the
head of the humerusoutward; they also assist in carrying the arm backward.
Sometimes a group of muscle fibres from teres minor may be fused with
Accessory muscles of the scapula
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